[Resolved] Enter App ID – Now what?

In the plugin settings page, it says to input the App ID. I do that, but what then? There is no save changes button, there is no update App ID button. The plugin appears to be working, but I’ve now got a red error message all over the backend of my site, because it thinks I haven’t inputted the ID. If I need to, I’ll play around in the database to force it to accept the ID, but surely there’s something wrong here.